"A guest is coming to Ella Mentry School! It's local TV meteorologist Sprinkles Newman, who is going to teach A.J. and the gang about the weather. but what happens when a real storm heads for the school? The forecast calls for a 100% chance of weird!"--Page 4 of cover.

Ella Mentary School is having a science fair! Guest scientist Dr. Snow has arrived to help A.J. and his friends conduct their own cool experiments. But what is "the snowman" really planning? And what does STEM even stand for anyway?

On Saint Patrick's Day, A.J. spots a real-life leprechaun sneaking around the school and causing havoc. Can he and his friends catch the leprechaun before there's even more trouble?

The new music teacher must try to teach A.J. and the rest of his class to play well enough during their recital to impress crabby Dr. Carbles.

A.J. has trouble coming up with a talent to put on display in his class's upcoming talent show.

"There's a new principal at Ella Mentry School. Yes, it's true! Mr. Klutz is retiring and the president of the Board of Education, Dr. Carbles (Boo! Hiss!), has hired the best person for the job -- or at least the funniest. But stand-up comedian Mrs. Stoker will have to face Vice Principal Mrs. Jafee in a big joke-off duel to defend her new job. Will Mrs. Stoker have the last laugh? Or will shoe lose her audience when things get serious?"--

A.J.'s class is going head-to-head against Dirk School in a charity softball game. The losing team must clean the winning school's toilet with a toothbrush! Mr. Ott, retired baseball pro, intends to lead Ella Mentry School to victory, but will his weird tactics actually make the team lose?

A.J. and his classmates are convinced that new school librarian, Mrs. Roopy, has multiple personality disorder because she keeps pretending to be famous people.

"A special guest has arrived at Ella Mentry School! Professor Pitt is the president of a local art museum and has all sorts of wacky ideas about art. A.J. thinks it's all a total snoozefest... until the piece he turns in for an art assignment gets praised as a work of genius! Suddenly, Professor Pitt is introducing A.J. as the next big thing to happen to the art world. What could possibly go wrong?"

"A.J. and his friends are graduating from third grade. Eeeek! The kids have the chance to choose a guest speaker for the ceremony, and their minds are all set on one person: the most popular singer and rapper in the world, Lil Mouse! Will they be able to get their favorite celebrity and have the greatest graduation in the history of graduations?"--